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Nature 417, 128-129 (9 May 2002) | doi:10.1038/417128a

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Cytoskeleton: Microtubules do the twist

Patrick J. Hussey

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As plant life diversified during evolution there would have been intense competition for light, making the ability to twist and climb advantageous. A subcellular filamentous network can create the twist seen in climbing plants.

The love affair between a left-handed-twisting plant, bindweed, entwining the right-handed-twisting honeysuckle was doomed when a bee told them to consider their offspring:Poor little sucker, how will it learn
When it is climbing, which way to turn?
Right — left — what a disgrace!